Flash Boiling Spray Simulation Based on Void Fraction and Superheat Controlling

Abstract:

A new flash boiling spray model whose atomization criterion based on the void fraction and superheat while evaporation model based on the dual-zone method is established to simulate the flashing sprays. The model function is implemented in KIVA program. Flash boiling spray model predicts spray penetration and spray cone angle and its development trend, in good agreement with the experimental results. The model has a good capability in simulating flash sprays at low superheat conditions, which breakup is controlled by void fraction, as well as high superheat transition process. It can also predict flare flashing sprays to some extent at higher superheat conditions.

• Periodical: Applied Mechanics and Materials (Volume 737)
• Pages: 289-295
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.737.289
• Online since: March 2015
• Authors: Hong Yuan Ding, Peng Deng, Xu Yao Mao, Chao Wu
• Keywords: Flash Boiling Spray, KIVA, Simulation, Superheat, Void Fraction

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